Understanding Psychology (10th Ed)

need for power
A tendency to seek 
impact, control, or infl uence over 
others and to be seen as a powerful 
individual.
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1. 1-b, 2-a, 3-c;
2.
weight set point;
3.
metabolism;
4.
achievement;
5.
c.
R E C A P / E V A L U A T E / R E T H I N K
R E C A P 
What biological and social factors underlie hunger?
• Eating behavior is subject to homeostasis, as most 
people’s weight stays within a relatively stable range. 
The hypothalamus in the brain is central to the 
regulation of food intake. (p. 319)
• Social factors, such as mealtimes, cultural food prefer-
ences, and other learned habits, also play a role in the 
regulation of eating by determining when, what, and 
how much one eats. An oversensitivity to social cues and 
an insensitivity to internal cues may also be related to 
obesity. In addition, obesity may be caused by an 
unusually high weight set point—the weight the body 
attempts to maintain—and genetic factors. (p. 319)
How are needs relating to achievement, affi liation, and power 
motivation exhibited?
• Need for achievement refers to the stable, learned 
characteristic in which a person strives to attain a level 
of excellence. Need for achievement is usually mea-
sured through the Thematic Apperception Test (TAT), a 
series of pictures about which a person writes a story. 
(p. 325)
• The need for affi liation is a concern with establishing 
and maintaining relationships with others, whereas the 
need for power is a tendency to seek to exert an impact 
on others. (p. 325)